Add SchedulingInfo Dto

Author: ytalashko

app/dtos/SchedulingInfoDto.scala

@@ -0,0 +1,34 @@
+package dtos
+
+import play.api.db.DB
+import play.api.Play.current
+import models.SchedulingInfo
+
+import scala.collection.mutable.ListBuffer
+
+object SchedulingInfoDto {
+
+  def getAll: List[SchedulingInfo] = {
+    val infos = new ListBuffer[SchedulingInfo]()
+    DB.withConnection { conn =>
+      val statement = conn.prepareStatement("SELECT * FROM SchedulingInfo")
+      val resultSet = statement.executeQuery()
+      while (resultSet.next()) {
+        infos += new SchedulingInfo(resultSet.getLong("id"), resultSet.getLong("eFactor"),
+          resultSet.getInt("repetition"), resultSet.getLong("interval"), resultSet.getDate("nextDate"))
+      }
+    }
+    infos.toList
+  }
+
+  def save(info: SchedulingInfo) = {
+    DB.withConnection { conn =>
+      val statement = conn.prepareStatement("INSERT INTO SchedulingInfo (eFactor, repetition, interval, nextDate) VALUES (?, ?, ?, ?)")
+      statement.setDouble(1, info.eFactor)
+      statement.setInt(2, info.repetition)
+      statement.setLong(3, info.interval)
+      statement.setDate(4, new java.sql.Date(info.nextDate.getTime))
+      statement.executeUpdate()
+    }
+  }
+}

app/models/SchedulingInfo.scala

@@ -1,5 +1,8 @@
 package models
 
-import java.time.LocalDate
+import java.util.Date
 
-class SchedulingInfo(val id: Long, val eFactor: Double, val repetition: Int, val interval: Long, val nextDate: LocalDate)
+class SchedulingInfo(val id: Long, val eFactor: Double, val repetition: Int, val interval: Long, val nextDate: Date) {
+
+  def this(eFactor: Double, repetition: Int, interval: Long, nextDate: Date) = this(0, eFactor, repetition, interval, nextDate)
+}

app/schedulers/SM2.scala

@@ -1,27 +1,27 @@
 package schedulers
 
-import java.time.LocalDate
+import java.util.Date
 
 import models.SchedulingInfo
 
 class SM2 {
-  def init(id: Long, dateAdded: LocalDate) =
+  def init(id: Long, dateAdded: Date) =
     new SchedulingInfo(
       id = id,
       eFactor = 2.5,
       repetition = 1,
       interval = 1,
-      nextDate = dateAdded.plusDays(1)
+      nextDate = addDays(dateAdded, 1)
     )
 
-  def schedule(item: SchedulingInfo, date: LocalDate, quality: Int): SchedulingInfo = {
+  def schedule(item: SchedulingInfo, date: Date, quality: Int): SchedulingInfo = {
     if (quality < 3) {
       new SchedulingInfo(
         id = item.id,
         eFactor = item.eFactor,
         repetition = 1,
         interval = 1,
-        nextDate = date.plusDays(1)
+        nextDate = addDays(date, 1)
       )
     } else {
       val eFactor = easiness(item.eFactor, quality)
@@ -31,7 +31,7 @@ class SM2 {
         eFactor = eFactor,
         repetition = item.repetition + 1,
         interval = nextInterval,
-        nextDate = date.plusDays(nextInterval)
+        nextDate = addDays(date, nextInterval)
       )
     }
   }
@@ -43,4 +43,12 @@ class SM2 {
     else if (n == 2) 6
     else Math.round(interval * eFactor)
 
+  private def addDays(date: Date, days: Long): Date = {
+    new Date(date.getTime + days * SM2.MILLIS_IN_DAY)
+  }
+}
+
+object SM2 {
+
+  private val MILLIS_IN_DAY = 24 * 60 * 60 * 1000
 }

build.sbt

@@ -8,6 +8,8 @@ scalaVersion := "2.11.7"
 
 libraryDependencies ++= Seq( jdbc , cache , ws   , specs2 % Test )
 
+libraryDependencies += "org.xerial" % "sqlite-jdbc" % "3.8.10.1"
+
 unmanagedResourceDirectories in Test <+=  baseDirectory ( _ /"target/web/public/test" )  
 
-resolvers += "scalaz-bintray" at "https://dl.bintray.com/scalaz/releases"  
+resolvers += "scalaz-bintray" at "https://dl.bintray.com/scalaz/releases"

conf/application.conf

@@ -37,6 +37,9 @@ application.langs="en"
 # db.default.url="jdbc:h2:mem:play"
 # db.default.user=sa
 # db.default.password=""
+# Default database configuration using SQLite database engine
+db.default.driver=org.sqlite.JDBC
+db.default.url="jdbc:sqlite:database.db3"
 
 # Evolutions
 # ~~~~~

db/evolutions/1.sql

@@ -0,0 +1,7 @@
+CREATE TABLE SchedulingInfo (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    eFactor DOUBLE NOT NULL,
+    repetition INTEGER NOT NULL,
+    interval bigint NOT NULL,
+    nextDate DATE NOT NULL
+);